10 for 16$ used in bioactive terrarium for your reptiles or as a easy to take care of unique pet. This species is great for dryer type terrariums and can be put with sand boas, hognose, etc. But they will still need a moist area to retreat to as they are still isopods and do require that moist area to stay alive. They will burrow throughout the substrate and are known to play dead if you disturb the substrate where they are hiding but will eventually get up and run away.